🌧️ The Short Answer:
No — modern skylights should not leak when installed correctly. In New Zealand’s often wet and windy climate, skylight systems are specifically engineered to remain watertight through heavy rain, hail, and storms.
The real culprit behind leaks? Poor installation — not the product itself.
🔍 Why Skylights Leak (When They Do)
- Incorrect or Missing Flashing: Flashing is the material that creates a watertight seal between the skylight and your roofing material. Without the right flashing kit, water finds a way in.
- DIY or Low-Cost Installs: Installations that skip professional standards often lead to corner-cutting — and leaks months later.
- Old Skylights or Roof Movement: Homes shift slightly over time. Older skylights without flexible seals may become vulnerable.
🛠️ What Makes Modern Skylights Watertight?
- Custom Flashing Kits designed for specific roof types (tile, corrugated iron, etc.)
- Layered Sealing Systems that manage runoff and direct water away
- UV-stable, weather-resistant materials to withstand harsh NZ conditions
- Professional Install Standards that account for pitch, wind uplift, and moisture channels
“A properly flashed skylight is no more likely to leak than a chimney or roof vent.”
🌦️ NZ Rain Zones & What to Watch For
In high-rainfall regions like:
- West Coast
- Taranaki
- Bay of Plenty
- Wellington hills
… it’s especially important to:
- Use a licensed installer
- Confirm flashing type in your quote
- Ensure your roof pitch supports the skylight’s drainage angle
🧠 Pro Tip:
Many modern skylights come with 25+ year warranties — but only when installed by certified professionals.
💬 Want Peace of Mind Before You Install?
We’ll connect you with experienced installers who understand NZ’s climate and building codes.